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Compare the published Medicare service mix of Alex Aurelio Sanchez, M.D. with clinicians in the same registry specialty: Geriatric Medicine (CMS).

ELGIN, IL · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bhupinder K Chhabra, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
66%Service-mix similarity~16.3 milesView profile →

Brian N Rubenstein, MD

Geriatric Medicine · Internal Medicine (CMS) · Park Ridge, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
59%Service-mix similarity~24.0 milesView profile →

Najma Lokhandwala, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
50%Service-mix similarity~16.3 milesView profile →

Thomas F Cozzi, MD

Family Practice · Geriatric Medicine · Internal Medicine (CMS) · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
48%Service-mix similarity~17.5 milesView profile →

Saqib Nisar, MD

Geriatric Medicine · Internal Medicine (CMS) · Mchenry, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
47%Service-mix similarity~21.9 milesView profile →

Melissa Nicole Dattalo, MD, MPH

Geriatric Medicine · Internal Medicine (CMS) · Wheaton, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
45%Service-mix similarity~15.4 milesView profile →

Monica Mahajan, MD

Specialty details in registry · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
44%Service-mix similarity~16.3 milesView profile →

Samir Bhalla, MD

Specialty details in registry · Hillside, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
44%Service-mix similarity~23.9 milesView profile →

Arshea Siddiqui, MD

Internal Medicine (CMS) · Aurora, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
44%Service-mix similarity~17.9 milesView profile →

Ha Jeong Lee, MD

Geriatric Medicine · Internal Medicine (CMS) · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
40%Service-mix similarity~16.3 milesView profile →

Ilya Isaakovich Fishman, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
37%Service-mix similarity~16.3 milesView profile →

Paul P Chiang, MD

Specialty details in registry · Wheaton, IL

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
36%Service-mix similarity~15.4 milesView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in approximate distance order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.